The idea behind this cocktail is to imitate the tye-dye t-shirts The Grateful Dead used to wear back in the 60's, best way to do so is in a Collins Glass (or any tall glass) 1/4oz. (I count) of all Vodka, Gin, Rum, Tequila, Blue Curacao, fill with Sour mix, shake and then top of with a floater (1/4oz) of Chambord Raspberry Liqueur.
Enjoy!